Method of preparing pressure sensitive adhesives having interpolymers with internal crosslinking monomers
US5214094A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1991 |
| Grant date | May 25, 1993 |
| Priority date | — |
| Expiry date | Dec 19, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/302
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Novel adhesive products are prepared by coating a novel adhesive formulation onto appropriate substrates. The adhesive formulation is capable of maintaining coatable viscosity at solids levels in excess of 58% and may comprise an interpolymer prepared in the presence of a high concentration of chain transfer agents, and may also comprise external and/or internal crosslinking agents The Williams Plasticity Number of solids from the formulation may be less than 1.8 (determined in the absence of external crosslinking agents). Alkyl acrylamidoglycolate alkyl ether monomer copolymerized with a more reactive monomer provides an interpolymer having reduced need for strong acid catalysis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.